Island



(N0Mode1.') H. G. WEEDEN,

N. PETERS, Pmm-Llm m, Waihingfion. n. c.

UNITED STATES PATENT OFFICE.

HENRY O. \VEEDEN, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE VVEEDEN SANITARY MANUFACTURING COMPANY, OF RIIODE ISLAND.

AUTOMATIC FLUSHING DEVICE.

SPECIFICATION forming part of Letters Patent No. 416,137, dated November 26. 1889.

Application filed March 16, 1889. Serial No. 303,564. (No model.)

for Urinals and Similar Struc ures, of which the following is a specification.

My present invention relates to that class of automatic flushing devices embodying a bowl to be flushed, a supply-tank therefor, a flushing-pipe extending from the tank to the bowl, and an air-compression pipe for compressing air in a chamber, whereby the siphon is started. Its object is to improve the construction and operation of apparatus of the class indicated.

In the accompanying drawing I have represented an apparatus embodying my present improvement, which I will now proceed to describe.

My improvement relates to a device which embodies, in addition to the supply-tank, the siphon discharge pipe therefrom, and the bowl to be flushed by said discharge-pipe, a chamber within the tank and surrounding the siphon, this chamber being made air-tight at its upper part, so as to inclose a body of air above the water in the short leg of the siphon. It also includes a chamber below the bowl to be flushed and with which the bowl communicates, this chamber being adapted to contain water in its lowest part, and above this water a body of confined air; and,lastly, an air-pressure-transmission pipe extending from the body of air confined below the bowl 'to that confined in the chamber in the tank.

In the drawing, A represents the tank; B, the siphon flushing-pipe; C, the bowl to be flushed; D, its outlet; E, the chamber in the tank; F, the chamber below the bowl, and G the air-transmission pipe.

I have represented the chamber E as a stationary chamber closed atthe top and open at the bottom through the orifice c. This chamber will contain at its upper portion a body of air inclosed. The outlet D of the bowl is carried down below the level of the water standing in the bottom of the chamber F, the discharge-pipe II of which is preferably trapped, as shown, and has its mouth at such a height above the bottom of the chamber F as to preserve the desired water-level therein. The compressed-airtransmission pipe G extends from the body of air within 5 5 the chamber F and above the water-level up to and communicates with the body of air confined within the chamber E, the drawing representing the parts as at rest. If, now, fluid be introduced into the bowl, this fluid, passing down through the outlet D thereof and mingling with the water below the bowl, will cause the level thereof to rise, and thus produce compression of air in the chamber F. This compression will be transmitted through the transmission-pipe G to the body of air in the upper part of the chamber E, and the air being there compressed will produce such a variation of equilibrium of thewater in the short leg of the siphon as to cause it to pass over the bend and down the long leg, thus starting the flush.

I make no claim herein to any method involved in the operation of the apparatus, the same forming the subject-matter of an application filed by me March 14, 1889, and numbered 302,845.

I claim In a device embodying a flushing-tank, a siphon flushing-pipe leading therefrom, and a bowl to be flushed by said flushing-pipe, the combination for eifecting the automatic op eration of said siphon through the agency of fluid introduced into the bowl when in use, of the following element-sviz., a chamber inclosing the upper portion of the said siphon within the tank, said chamber being air-tight at its upper partand having a water-entrance at its lower part, a chamber below the bowl to be flush ed and with which the outlet thereof communicates, the said chamber being formed to'inclose air in its upper part, and a compressed-air-transmission pipe extending from the upper part of said chamber to the airbody in the chamber in the tank, subs'tantially as set forth. 1

In testimony whereof I have hereunto subscribed my name this 14th day of March,A. D. 1889.

HENRY O. IVEEDEN.

Witnesses:

ELLEN B. ToMLINsoN, JOHN H. TAYLOR. 

